8- However, even when the field current is zero, some amount of emf is generated( represented byfact that there exists some residual magnetism in the field poles.in the figure below ) this initially induced emf is due to theN.N,N.Increase inspeed (N)Field Current (1.)9-lf the DC shunt generator has an induced open circuit voltage of 127 v and thegenerator is delivers current of 342 A and the on load voltage is 120 v and field resistance15 ohm then Ra=10-in figure below Armature flux lines is due to theField poles areGNA, MNAArmaturs11-Hence, beyond certain limit any further decrease inresults in decreasingtheConsequently, thecharacteristic curveas shown infigure below.Armature ReactionDropOhmicDVoltage DropInternalCharacteristic€xternalCharacteristicLoad Current (I)12- if T=295 NM for 4-pole dc motor having 774 conductors, wave wound 24mwb fluxper pole then la =No-load voltage (E)Generated Voltage (Eg)Terminal Voltage (M)

Given .... Fill in the blanks... Load voltage, v = 120 V Induced open current voltage, V = 127 Volt…

8- However, even when the field current is zero, some amount of emf is generated (represented by fact that there exists some residual magnetism in the field poles. in the figure below ) this initially induced emf is due to the N, N. Increase in speed (N) Field Current (1,) 9-lf the DC shunt generator has an induced open circuit voltage of 127 v and the generator is delivers current of 342 A and the on load voltage is 120 v and field resistance 15 ohm then Ra=.

8- However, even when the field current is zero, some amount of emf is generated (represented by fact that there exists some residual magnetism in the field poles. in the figure below ) this initially induced emf is due to the N, N. Increase in speed (N) Field Current (1,) 9-lf the DC shunt generator has an induced open circuit voltage of 127 v and the generator is delivers current of 342 A and the on load voltage is 120 v and field resistance 15 ohm then Ra=.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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